chef's knife; cook's knife
A large, all-purpose kitchen knife used for cutting meat, fish, and vegetables. The term is common in cooking contexts.
The chef cut the vegetables with a chef's knife.
using a sledgehammer to crack a nut; overkill
Compound of 牛 (gyū, 'cow, beef') and 刀 (tō, 'sword, knife'). The name reflects its traditional use for cutting beef, though it is now a general-purpose chef's knife.